Detailed Product Description

Summary
  It is a three phase H.V switch equipment of 12KV. 50Hz for breaking or closing load current. no-load transformer cable charging current and closing short-circuit current. The load switch with earth switch can bear short-circuit current.
  It is made up of FN12-12D load switch and SLAJ-12(XRNT-10) H.V current-limiting fuse box. It can break any current, load switch breaking working current and fuse box breaking short-circuit current. jointly breaking any current between short-circuit current. meantime. fuse box make the switch off of with the striker.

Application
  It is used in the ring network city distribution and industrial equipment of 12KV and three-phase AC 50Hz to cortrol load and short-circuit. because the switch with fuse protecting transformer etc more reliably than circuit breaker. It is especialy suitable for ring network clouble radial distribution and package substation.

Standard
a. GB3804-90 <<3-63KV AC H.V load switch>>.
B. GBXXXX-XX <<AC H.V load switch with fuse box>>(the same IEC420-1990).
C. GB1995-89 <<AC H.V isolate switch and earth switch>>.